IMF Tells Stablecoins: You're the Dollar Nobody Asked For 🚀

Dollar stablecoins could broaden foreign-currency access in economies with fixed or tightly managed exchange rates, yet risk accelerating capital flight when domestic currencies come under acute stress, according to an International Monetary Fund (IMF) working paper. The study, authored by economist Brandon Joel Tan and titled "Stablecoins and Fragility in Fixed Exchange Rate Regimes," modeled parallel foreign-exchange (FX) markets in which official dollar access is rationed, finding that stablecoins function as both an alternative savings vehicle and a high-frequency signal of dollar scarcity.

Tan argued that stablecoins make "dollar-like claims easier to access" while creating a visible price for dollar demand. When a country's official exchange rate diverges sharply from the market rate, that price can indicate growing dollar scarcity and prompt simultaneous moves out of the local currency. The paper recommends that regulators consider temporary caps on unusually large or panic-driven transactions during currency crises, so that digital-dollar channels do not amplify runs against the domestic currency.

The research draws on instances in which stablecoins have already been deployed as informal FX benchmarks. On June 9, 2025, retailers at a Bolivian airport priced goods in USDT while still accepting U.S. dollars and bolivianos. In 2024, Cointelegraph reported that Argentines used underground "crypto caves" to convert pesos into dollar-pegged stablecoins at rates that tracked the unofficial market, offering residents a way to preserve savings as the peso depreciated and currency controls restricted dollar access.

Regulators have separately flagged wider concerns. On March 24, the Financial Stability Board (FSB) said dollar stablecoins could expose emerging economies to currency substitution, weaker monetary policy transmission and the circumvention of capital-flow measures. The FSB urged lawmakers to monitor how the sector evolves and to assess liquidity and operational risks as stablecoin infrastructure becomes more interlinked with the traditional financial system.